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Date: Thu, 1 Sep 2022 19:43:28 +0530
From: Vignesh Raghavendra <vigneshr@...com>
To: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
Tero Kristo <kristo@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Linus Walleij <linus.walleij@...aro.org>
CC: <linux-arm-kernel@...ts.infradead.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-gpio@...r.kernel.org>, Bryan Brattlof <bb@...com>
Subject: [PATCH v2 5/5] arm64: dts: ti: Add support for AM62A7-SK
AM62A StarterKit (SK) board is a low cost, small form factor board
designed for TI’s AM62A7 SoC. It supports the following interfaces:
* 2 GB LPDDR4 RAM
* x1 Gigabit Ethernet interface
* x1 HDMI Port with audio
* x1 Headphone Jack
* x1 USB2.0 Hub with two Type A host and x1 USB Type-C DRP Port
* x1 UHS-1 capable µSD card slot
* M.2 SDIO Wifi + UART slot
* 1Gb OSPI NAND flash
* x4 UART through UART-USB bridge
* XDS110 for onboard JTAG debug using USB
* Temperature sensors, user push buttons and LEDs
* 40-pin User Expansion Connector
* 24-pin header for peripherals in MCU island (I2C, UART, SPI, IO)
* 20-pin header for Programmable Realtime Unit (PRU) IO pins
* 40-pin CSI header
Add basic support for AM62A7-SK.
Schematics: https://www.ti.com/lit/zip/sprr459
Co-developed-by: Bryan Brattlof <bb@...com>
Signed-off-by: Bryan Brattlof <bb@...com>
Signed-off-by: Vignesh Raghavendra <vigneshr@...com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
arch/arm64/boot/dts/ti/Makefile | 2 +
arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 223 ++++++++++++++++++++++++
2 files changed, 225 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 02e5d80344d0..4555a5be2257 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -23,3 +23,5 @@ dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am625-sk.dtb
+
+dtb-$(CONFIG_ARCH_K3) += k3-am62a7-sk.dtb
diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
new file mode 100644
index 000000000000..576dbce80ad8
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -0,0 +1,223 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * AM62A SK: https://www.ti.com/lit/zip/sprr459
+ *
+ * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/gpio/gpio.h>
+#include "k3-am62a7.dtsi"
+
+/ {
+ compatible = "ti,am62a7-sk", "ti,am62a7";
+ model = "Texas Instruments AM62A7 SK";
+
+ aliases {
+ serial2 = &main_uart0;
+ mmc1 = &sdhci1;
+ };
+
+ chosen {
+ stdout-path = "serial2:115200n8";
+ };
+
+ memory@...00000 {
+ device_type = "memory";
+ /* 2G RAM */
+ reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ secure_tfa_ddr: tfa@...80000 {
+ reg = <0x00 0x9e780000 0x00 0x80000>;
+ alignment = <0x1000>;
+ no-map;
+ };
+
+ secure_ddr: optee@...00000 {
+ reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */
+ alignment = <0x1000>;
+ no-map;
+ };
+
+ wkup_r5fss0_core0_memory_region: r5f-dma-memory@...00000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00 0x9c900000 0x00 0x01e00000>;
+ no-map;
+ };
+ };
+
+ vmain_pd: regulator-0 {
+ /* TPS25750 PD CONTROLLER OUTPUT */
+ compatible = "regulator-fixed";
+ regulator-name = "vmain_pd";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vcc_5v0: regulator-1 {
+ /* Output of TPS63070 */
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_5v0";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ vin-supply = <&vmain_pd>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vcc_3v3_sys: regulator-2 {
+ /* output of LM5141-Q1 */
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_3v3_sys";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&vmain_pd>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vdd_mmc1: regulator-3 {
+ /* TPS22918DBVR */
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_mmc1";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ enable-active-high;
+ gpio = <&exp1 3 GPIO_ACTIVE_HIGH>;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&usr_led_pins_default>;
+
+ led-0 {
+ label = "am62a-sk:green:heartbeat";
+ gpios = <&main_gpio1 49 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "heartbeat";
+ function = LED_FUNCTION_HEARTBEAT;
+ default-state = "off";
+ };
+ };
+};
+
+&main_pmx0 {
+ main_uart0_pins_default: main-uart0-pins-default {
+ pinctrl-single,pins = <
+ AM62AX_IOPAD(0x1c8, PIN_INPUT, 0) /* (D14) UART0_RXD */
+ AM62AX_IOPAD(0x1cc, PIN_OUTPUT, 0) /* (E14) UART0_TXD */
+ >;
+ };
+
+ main_i2c0_pins_default: main-i2c0-pins-default {
+ pinctrl-single,pins = <
+ AM62AX_IOPAD(0x1e0, PIN_INPUT_PULLUP, 0) /* (B16) I2C0_SCL */
+ AM62AX_IOPAD(0x1e4, PIN_INPUT_PULLUP, 0) /* (A16) I2C0_SDA */
+ >;
+ };
+
+ main_i2c1_pins_default: main-i2c1-pins-default {
+ pinctrl-single,pins = <
+ AM62AX_IOPAD(0x1e8, PIN_INPUT_PULLUP, 0) /* (B17) I2C1_SCL */
+ AM62AX_IOPAD(0x1ec, PIN_INPUT_PULLUP, 0) /* (A17) I2C1_SDA */
+ >;
+ };
+
+ main_i2c2_pins_default: main-i2c2-pins-default {
+ pinctrl-single,pins = <
+ AM62AX_IOPAD(0x0b0, PIN_INPUT_PULLUP, 1) /* (K22) GPMC0_CSn2.I2C2_SCL */
+ AM62AX_IOPAD(0x0b4, PIN_INPUT_PULLUP, 1) /* (K24) GPMC0_CSn3.I2C2_SDA */
+ >;
+ };
+
+ main_mmc1_pins_default: main-mmc1-pins-default {
+ pinctrl-single,pins = <
+ AM62AX_IOPAD(0x23c, PIN_INPUT, 0) /* (A21) MMC1_CMD */
+ AM62AX_IOPAD(0x234, PIN_INPUT, 0) /* (B22) MMC1_CLK */
+ AM62AX_IOPAD(0x230, PIN_INPUT, 0) /* (A22) MMC1_DAT0 */
+ AM62AX_IOPAD(0x22c, PIN_INPUT, 0) /* (B21) MMC1_DAT1 */
+ AM62AX_IOPAD(0x228, PIN_INPUT, 0) /* (C21) MMC1_DAT2 */
+ AM62AX_IOPAD(0x224, PIN_INPUT, 0) /* (D22) MMC1_DAT3 */
+ AM62AX_IOPAD(0x240, PIN_INPUT, 0) /* (D17) MMC1_SDCD */
+ >;
+ };
+
+ usr_led_pins_default: usr-led-pins-default {
+ pinctrl-single,pins = <
+ AM62AX_IOPAD(0x244, PIN_OUTPUT, 7) /* (D18) MMC1_SDWP.GPIO1_49 */
+ >;
+ };
+};
+
+&main_i2c0 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_i2c0_pins_default>;
+ clock-frequency = <400000>;
+};
+
+&main_i2c1 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_i2c1_pins_default>;
+ clock-frequency = <400000>;
+
+ exp1: gpio@22 {
+ compatible = "ti,tca6424";
+ reg = <0x22>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ gpio-line-names = "GPIO_CPSW2_RST", "GPIO_CPSW1_RST",
+ "BT_EN_SOC", "MMC1_SD_EN",
+ "VPP_EN", "EXP_PS_3V3_En",
+ "EXP_PS_5V0_En", "EXP_HAT_DETECT",
+ "GPIO_AUD_RSTn", "GPIO_eMMC_RSTn",
+ "UART1_FET_BUF_EN", "BT_UART_WAKE_SOC",
+ "GPIO_HDMI_RSTn", "CSI_GPIO0",
+ "CSI_GPIO1", "WLAN_ALERTn",
+ "HDMI_INTn", "TEST_GPIO2",
+ "MCASP1_FET_EN", "MCASP1_BUF_BT_EN",
+ "MCASP1_FET_SEL", "UART1_FET_SEL",
+ "PD_I2C_IRQ", "IO_EXP_TEST_LED";
+ };
+};
+
+&sdhci1 {
+ /* SD/MMC */
+ status = "okay";
+ vmmc-supply = <&vdd_mmc1>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_mmc1_pins_default>;
+ ti,driver-strength-ohm = <50>;
+ disable-wp;
+};
+
+&main_gpio0 {
+ status = "okay";
+};
+
+&main_gpio1 {
+ status = "okay";
+};
+
+&main_gpio_intr {
+ status = "okay";
+};
+
+&main_uart0 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_uart0_pins_default>;
+};
--
2.37.2
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